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Performance certified is for installation type B: Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not
include the effects of appurtenances (accessories).
The sound power level ratings shown are in decibels, referred to 10
-12
watts, calculated per AMCA Standard 301. Values shown are for inlet L
Wi
, L
Wi
A and outlet L
Wo
,
L
Wo
A sound power levels for installation type B: Free inlet, Ducted outlet. Ratings for inlet sound do not include the effects of duct end correction. Ratings for outlet
sound include the effects of duct end correction. The A-weighted sound power ratings shown have been calculated per AMCA Standard 301. The AMCA Certified
Ratings Seal applies to L
Wi
A and L
Wo
A values only.
Performance Data
QEI-33 Class I & QEI-L
CFM OV
STATIC PRESSURE (inches wg)
0.25 0.5 1 1.5 2 2.5 3 3.5 4
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
8400 745 379 0.52 444 0.93 562 1.93
10200 905 435 0.72 489 1.17 593 2.27 687 3.52
12000 1064 494 0.99 539 1.48 631 2.67 717 4.02 795 5.48
13800 1224 556 1.35 595 1.88 675 3.13 753 4.60 827 6.17 893 7.81 966 9.68
15600 1384 618 1.79 653 2.37 723 3.69 793 5.22 862 6.93 927 8.71 988 10.6 1050 12.6 1113 14.7
17400 1543 682 2.32 714 2.96 776 4.37 840 5.97 902 7.74 963 9.66 1022 11.6 1077 13.7 1129 15.8
19200 1703 747 2.97 775 3.67 832 5.17 888 6.83 947 8.67 1003 10.7 1058 12.8 1112 15.0 1163 17.2
21000 1863 812 3.74 837 4.50 889 6.08 940 7.83 994 9.75 1045 11.8 1098 14.0 1149 16.3 1198 18.7
22800 2023 878 4.64 900 5.46 948 7.16 996 8.99 1042 10.9 1093 13.1 1140 15.3 1189 17.8
24600 2182 944 5.69 965 6.56 1009 8.38 1053 10.3 1097 12.4 1141 14.5 1188 16.9 1231 19.3
26400 2342 1010 6.89 1029 7.83 1070 9.75 1111 11.8 1153 13.9 1192 16.2
28200 2502 1076 8.25 1094 9.25 1132 11.3 1171 13.4 1209 15.6
InletSoundPower,L
Wi
[dBref10
-12
watts] OutletSoundPower,L
Wo
[dBref10
-12
watts]
RPM %WOV 1 2 3 4 5 6 7 8 L
Wi
A RPM %WOV 1 2 3 4 5 6 7 8 L
Wo
A
300
100 68 68 62 60 61 48 39 32 64
300
100 71 67 64 64 64 52 45 38 67
80 66 66 60 60 60 49 40 34 62 80 68 68 63 63 63 52 45 38 66
60 62 65 59 60 60 49 39 32 62 60 67 68 62 63 63 52 46 39 66
50 65 66 60 60 60 49 39 33 62 50 68 69 62 63 64 53 46 40 66
450
100 74 76 71 70 70 59 50 45 73
450
100 80 76 73 72 71 62 54 46 74
80 71 75 68 70 66 58 51 44 70 80 77 76 70 71 68 61 54 46 72
60 69 72 66 70 65 59 52 45 70 60 77 76 68 70 67 60 54 46 71
50 69 72 66 70 65 58 52 44 70 50 78 76 69 70 68 60 54 46 72
600
100 83 81 78 74 73 74 59 54 79
600
100 88 82 79 80 76 74 61 54 81
80 79 80 75 72 72 66 60 53 76 80 86 82 77 78 75 68 61 53 79
60 78 79 73 70 71 66 60 54 75 60 85 82 75 75 73 67 61 53 78
50 78 79 73 70 71 66 60 54 75 50 84 82 75 75 73 67 61 54 77
850
100 84 93 88 83 79 84 70 62 88
850
100 85 90 87 88 83 83 74 65 90
80 82 92 85 80 78 74 67 61 84 80 84 90 84 85 80 76 70 62 86
60 81 90 80 76 75 73 68 63 81 60 84 88 82 83 78 75 69 64 84
50 81 88 80 75 75 73 68 63 81 50 86 89 82 82 78 75 69 64 84
1234
100 88 98 95 94 90 88 90 75 97
1234
100 91 95 97 99 94 91 91 78 100
80 86 96 93 91 88 84 78 72 93 80 89
95 94 96 91 87 82 74 97
60 86 95 88 87 84 82 77 73 90 60 92 93 92 93 88 85 80 74 94
50 86 95 88 87 84 82 77 73 90 50 94 94 92 93 88 85 80 75 94
Static Pressure (in. wg)
Static Pressure (Pa x 100)
Volume (cfm x 1000)
3
Volume (m /hr x 1000)
0 10 20 30 40 50
0
2
4
6
8
10
12
14
D
O
N
O
T
S
E
L
E
C
T
T
O
T
H
E
L
E
F
T
O
F
T
H
I
S
S
Y
S
T
E
M
C
U
R
V
E
0 4 8 12 16 20 24 28 32
0
1
2
3
4
5
6
QEI-33I
RPM
BHP
% WOV
Density 0.075 lb/ft
3
Density 1.2 kg/m
3
450
567
769
969
1109
60% WOV
70% WOV
80% WOV
90% WOV
5
2
10
15
20
25
1234
1
1000
Performance Data
Maximum
FanRPM
QEI-L 1000
QEI 1234
Specification Data
Maximum
Motor
FrameSize
QEI-L 256T
QEI 286T
MinimumMotor
Startinghp
1
1
⁄2hp 1.1 kW
WheelDiameter 40.25in. 1022 mm
ApproximateWeight
(LessMotor&Drives)
QEI-L 730lbs. 332 kg.
QEI 990lbs. 449 kg.
MaximumBhp=(FanRPM/450)
3
OutletVelocity(FPM)=CFM/11.27
TipSpeed(FPM)=FanRPMx10.5
%WOV=(CFMx100)/(FanRPMx26.7)
Imperialdata—Metric data